On July 16, BBC Home Entertainment is celebrating the 50th anniversary of "Doctor Who" by releasing "Doctor Who: The Doctors Revisited: First - Fourth." A special 4-disc DVD set that explores earliest year of our favorite Time Lord and we've got an exclusive look at the trailer, plus we're thrilled to reveal a set of four magnets featuring each of the first four Doctors!

"The Doctors Revisited" takes a look at the series during the runs of William Hartnell (the First Doctor), Patrick Troughton (the Second Doctor), Jon Pertwee (the Third Doctor), and Tom Baker (the Fourth Doctor). It also features in-depth interviews with "Who" icons Tom Baker, David Tennant, John Barrowman, Frazer Hines (companion Jamie McCrimmon), Louise Jameson (companion Leela), Steven Moffat, Neil Gaiman, and others exploring what each Doctor brought to the series and more.

Watch the trailer for the set below and check out your first look at a set of four collectible magnets featuring the likeness of each of the first four Doctors!